v1.0.0—track team, crack fiend, dying to geek

First GA release. 1.0.0 milestone.

Mother is putting my new secondhand clothes in order. She prays now, she says, that I may learn in my own life and away from home and friends what the heart is and what it feels. Amen. So be it. Welcome, O life! I go to encounter for the millionth time the reality of experience and to forge in the smithy of my soul the uncreated conscience of my race. Old father, old artificer, stand me now and ever in good stead.
—James Joyce, Portrait of the Artist as a Young Man

New features

• Output API additions: everything now has an _aligned() form and a _yx() form
• New ncplane_aligned() to create a plane aligned relative to another
• New notcurses_at_yx() to reflect upon the last rendered frame
• _yx()-type functions accept -1 to mean "current position on this axis"
• Mouse input events
• New notcurses_mice_enable() and notcurses_mice_disable()
• New notcurses_refresh() for repainting a damaged screen
• witherworms demo replaces widecolor demo
• transparency for ncvisuals
• Building without FFmpeg is now supported via DISABLE_FFMPEG
• CELL_ALPHA_BLEND is now implemented
• Man pages added for all functions using pandoc
• HUD and stats added to notcurses-demo
• ncvisual can now create its own (optimally-sized) ncplane
  • ncvisual_stream now takes a callback+curry and supports resizing
• ncvisual now tracks PTS (presentation timestamps) for much more accurate video sync
• notcurses can now be built without FFmpeg.
  • All ncvisual functions will return error
  • notcurses-view will not be built
  • ncvisual unit tests will not be built
  • notcurses_init() will print a warning on startup about the missing functionality
• notcurses-view supports resizing
• new chunli demo

Performance improvements

• O(1) damage map
• ncvisuals can be partially rendered

Bug fixes

• Linear interpolation fixed for long lines
• box demo: transparent background fixed
• style state properly maintained across renders, fixes notcurses-input underlining
• Failure to start on st ("simple terminal") fixed
• view demo: cruft removed
• grid demo: fix color calculation, clip properly
• Unit tests using decimal separator now work in all locales
• witherworms demo: fix disappearing wide characters
• Fix disappearing topmost planereel
• Inhibit libswscale from crapping onto stderr
• Switch to char32_t from wchar_t to work on all architectures
• Higher planes properly obliterate lower wide glyphs they intersect
• Memory leak in ncvisual_render() path fixed
• All valgrind complaints for the demo have been fixed